rs1428157543

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 4P and 5B. PVS1_StrongBP6BS2

The NM_020717.5(SHROOM4):ā€‹c.30C>Gā€‹(p.Tyr10Ter) variant causes a stop gained change. The variant allele was found at a frequency of 0.0000116 in 1,206,179 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.0000091 ( 0 hom., 0 hem., cov: 22)
Exomes š‘“: 0.000012 ( 0 hom. 3 hem. )

Consequence

SHROOM4
NM_020717.5 stop_gained

Scores

2
2
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 3.95
Variant links:
Genes affected
SHROOM4 (HGNC:29215): (shroom family member 4) This gene encodes a member of the APX/Shroom family, which contain an N-terminal PDZ domain and a C-terminal ASD2 motif. The encoded protein may play a role in cytoskeletal architecture. Mutations in this gene have been linked to the X-linked Stocco dos Santos syndrome characterized by cognitive disabilities. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.993 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
BP6
Variant X-50813989-G-C is Benign according to our data. Variant chrX-50813989-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 436726.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS2
High Hemizygotes in GnomAdExome4 at 3 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SHROOM4NM_020717.5 linkuse as main transcriptc.30C>G p.Tyr10Ter stop_gained 1/9 ENST00000376020.9 NP_065768.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SHROOM4ENST00000376020.9 linkuse as main transcriptc.30C>G p.Tyr10Ter stop_gained 1/92 NM_020717.5 ENSP00000365188 P1Q9ULL8-1
SHROOM4ENST00000289292.11 linkuse as main transcriptc.30C>G p.Tyr10Ter stop_gained 1/101 ENSP00000289292 P1Q9ULL8-1

Frequencies

GnomAD3 genomes
AF:
0.00000906
AC:
1
AN:
110361
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32631
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000190
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000119
AC:
13
AN:
1095818
Hom.:
0
Cov.:
29
AF XY:
0.00000830
AC XY:
3
AN XY:
361304
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000155
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000906
AC:
1
AN:
110361
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
32631
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000190
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 06, 2017- -
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpJun 20, 2023Variant summary: SHROOM4 c.30C>G (p.Tyr10X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay. The variant was absent in 177854 control chromosomes, however other loss of function variants have been reported in gnomad in a small number of hemizygous individuals. To our knowledge, no occurrence of c.30C>G in individuals affected with X-Linked Intellectual Disability, Stocco Dos Santos Type and no experimental evidence demonstrating its impact on protein function have been reported. One submitter has cited clinical-significance assessments for this variant to ClinVar after 2014 and has classified the variant as likely benign. Due to the association of SHROOM4 with disease not being clearly established the variant was classified as VUS. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.55
D
BayesDel_noAF
Pathogenic
0.55
CADD
Pathogenic
36
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.91
D
MutationTaster
Benign
1.0
A;A
Vest4
0.21
GERP RS
5.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1428157543; hg19: chrX-50556989; API